find the length of 13.2 kg of copper wire of diameter 4mm ,when 1 cubic cm of copper weighs 8.4g
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Let its length be l.
A wire is in the form of cylinder.
R=2mm=0.2cm
Volume=(22/7) (0.2)^2 (l)
Now 1cc --- 8.4g
(22/7) (0.2)^2 (l)cc----(8.4) (22/7) (0.2)^2 (l)
Now just equate it to 13200g
Then,l=12500cm=125m.
A wire is in the form of cylinder.
R=2mm=0.2cm
Volume=(22/7) (0.2)^2 (l)
Now 1cc --- 8.4g
(22/7) (0.2)^2 (l)cc----(8.4) (22/7) (0.2)^2 (l)
Now just equate it to 13200g
Then,l=12500cm=125m.
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